var popUpWin=0;
function popUpWindow(URLStr,left,top,width,height,scrollable){
    if(popUpWin){
	    if(!popUpWin.closed)popUpWin.close();
    }
    popUpWin=open(URLStr,'popUpWin','toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbars='+scrollable+',resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top+'');
}